25455967 has 2 divisors, whose sum is σ = 25455968. Its totient is φ = 25455966.

The previous prime is 25455961. The next prime is 25456019. The reversal of 25455967 is 76955452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25455967 - 2²³ = 17067359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25455961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12727983 + 12727984.

It is an arithmetic number, because the mean of its divisors is an integer number (12727984).

Almost surely, 2^25455967 is an apocalyptic number.

25455967 is a deficient number, since it is larger than the sum of its proper divisors (1).

25455967 is an equidigital number, since it uses as much as digits as its factorization.

25455967 is an evil number, because the sum of its binary digits is even.

The product of its digits is 378000, while the sum is 43.

The square root of 25455967 is about 5045.3906687193. The cubic root of 25455967 is about 294.1687486667.

The spelling of 25455967 in words is "twenty-five million, four hundred fifty-five thousand, nine hundred sixty-seven".